I just gave my 7x4 trailer a but of a facelift.
The old mower box was made to suit the Rover 560, and the Victa and Honda were about ¾" too wide to fit in. Also needed somewhere to carry the BP blower, so made a whole new box & ramp. Easier said than done, but I sorta got there in the end.
IMG_20161108_064354rs.jpg IMG_20161108_064612rs.jpg